iter 23.1.4: E2E fixture — bare LT match via implicit prelude import

2026-05-10 21:32:05 +02:00
parent 47d95d0c60
commit aace5e3ce2
3 changed files with 101 additions and 13 deletions
@@ -0,0 +1,48 @@
+{
+  "schema": "ailang/v0",
+  "name": "ordering_match",
+  "imports": [],
+  "defs": [
+    {
+      "kind": "fn",
+      "name": "main",
+      "type": {
+        "k": "fn",
+        "params": [],
+        "ret": { "k": "con", "name": "Unit" },
+        "effects": ["IO"]
+      },
+      "params": [],
+      "doc": "Iter 23.1 fixture: pattern-match on prelude Ordering ctor without explicit prelude import.",
+      "body": {
+        "t": "do",
+        "op": "io/print_int",
+        "args": [
+          {
+            "t": "match",
+            "scrutinee": {
+              "t": "ctor",
+              "type": "Ordering",
+              "ctor": "LT",
+              "args": []
+            },
+            "arms": [
+              {
+                "pat": { "p": "ctor", "ctor": "LT", "fields": [] },
+                "body": { "t": "lit", "lit": { "kind": "int", "value": 1 } }
+              },
+              {
+                "pat": { "p": "ctor", "ctor": "EQ", "fields": [] },
+                "body": { "t": "lit", "lit": { "kind": "int", "value": 2 } }
+              },
+              {
+                "pat": { "p": "ctor", "ctor": "GT", "fields": [] },
+                "body": { "t": "lit", "lit": { "kind": "int", "value": 3 } }
+              }
+            ]
+          }
+        ]
+      }
+    }
+  ]
+}